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The shaded area on this map is where volcanic ash fell from the 1883 eruption of Krakatoa (Sunda Strait between Sumatra and Java). Red figures record the thickness of the ash in millimetres; black figures are distance from the eruption in kilometres.

A map charting the effects of the 1883 Krakatoa volcanic eruption: a red circle where the eruption was heard; black lines showing the hourly spread of the resulting waves; and a list of ships on which ash fell, or that encountered pumice (with date).

Map of Asia spread over nine sheets, for use in schools. Place names are not printed on the map itself, but are represented by initials and numbers (presumably, there is a legend that lists the names, but it is not present).

A French map of the Asian colonial possessions of the Netherlands (Dutch East Indies), with an inset map of the island of Java. Colonies of Britain (Malay Peninsula), Spain (the Philippines) and Portugal (parts of Floris and Timor) are also marked.

Map of Asia spread over nine sheets, for use in schools. Place names are not printed on the map itself, but are represented by initials and numbers (presumably, there is a legend that lists the names, but it is not present).

A French map of the Asian colonial possessions of the Netherlands (Dutch East Indies), with an inset map of the island of Java. Colonies of Britain (Malay Peninsula), Spain (the Philippines) and Portugal (parts of Floris and Timor) are also marked.

By Belgian geographer Philippe Vandermaelen (1795–1869), this 19th century map of the Malay Peninsula also features the Riau Islands—including the Anambas and Natuna islands in the South China Sea—the Straits of Malacca and the Singapore Strait.